Zac

Timelapse of Hurricane Isaias

New update for Soundings out now. Supports hurricane hunter dropsondes, international data, and improved resolution data in the US. Link: apps.apple.com/us/app/sound...

The hurricane hunters will be busy this week. 3 flights tomorrow and 1 currently in the air

Recruiting beta testers for a new version of Weatherwall. macOS/iPhone only right now. Sign up at weatherwary.kit.com/7dd2ac9725

All eyes on the gulf and eastern pacific this week as we await formation of new tropical systems. Here's a look at the model trends over the past few days.

Typhoon Dujuan is very pretty. At least the Pacific is making up for a lackluster Atlantic

Utah?? What's going on over there 👀

These ads are unhinged. The bets are so specific as to guarantee an uninformed person will lose money on the weather.

Photorealistic or nah?

Through extraordinary efforts, @windbornewx.bsky.social successfully navigated a controllable balloon above powerful Typhoon Dolphin, descended into its eye, then collected multiple vertical profiles as we circled inside its eye. A first of its kind type of hurricane data collection.

A little heat burst north of NYC tonight. Nearly 11pm and the heat index is still 102F.

Very sad to see this. I've been enjoying Om's writing for years now. om.co/2026/06/24/1...

Anyone using Claude to build better software for CAD or CAM yet?

The surge in bets is all the automated bettors responding to the data. Given the long tail you can see plenty of money to be made with faster data still.

I know there have been some Project 2029 memes, but what do we need to make it real? Fundraising infrastructure outside Act Blue / DNC? Effective GOTV infrastructure? The vision for a better tomorrow for all of us is easy. No need for vengeance against anyone, just a plan to make a better country

I am so excited to announce that one of the radar meteorology courses that I developed with @comet-meted.bsky.social is now available! "Dual-Polarization Fundamentals" picks up where "Weather Radar Fundamentals" left off! learn.meted.ucar.edu#/online-cour... (Register on learn.meted.ucar.edu first.)

What if he does the funniest thing on Friday??

Nice paper by Brice Coffer et al last week that moves us closer to reliable tornado prediction. They resolve issues in model datasets that previously prevented discrimination. Also they look at how observed storm motion compares to Bunkers in tornado vs non-tornado. arxiv.org/abs/2503.15466

Tough, but fair.

An oldie but goodie

Another dataset I like is from the National Atmospheric Deposition Program, which has maps of the US that show we fixed the acid rain problem by implementing stricter emission controls on power plants. nadp.slh.wisc.edu/maps-data/nt...

A recording of my talk at the recent AMS meeting: The Hidden Climate Tax: How Climate Change Increases Energy Demand and Costs For Society youtu.be/FoAo_a612XQ

More NWS tornado warning trivia. In Oct 2003, the directive for duration changed from "should be 30 to 60 minutes" to 15 to 45 minutes. Plot shows pdf 4 years before and after official change. Early (late) 70.6% (70.6%) from 30 to 60, 66.9% (62.8%) from 15 to 45.

Never really appreciated the last time I had honey roasted peanuts and a plastic cup on Southwest.

Super excited for Matt & First Street to have made the Time Climate 100 list. time.com/7172460/matt...

You might not make the lists but you are easily one of my favorite follows on these platforms!

Where is the @radarscope.bsky.social Vision Pro app 😥😥

Exploring how RTMA represents derecho events and looking at SPC performance here. Both seem pretty reasonable

Repost when you see this: Please bookmark this link! This is the desktop version of BlueSky! https://staging.bsky.app/